Brake-beam hanger.



S. S. UNDERWOOD.

BRAKE BEAM HANGER.

APPLICATION FILED FBB.1, 1909.

Patented Dec. 14, 1909.

I am: xl'oz witnesses SIDNEY SMITH UNDEBWOOD, OF MONTREAL, QUEBEC,CANADA.

BRAKE-BEAM HANGER.

ceases.

Specification of Letters Patent.

Patented Dec. 14, 19b9 Application filed February 1, 1909. Serial No.475,432.

T 0 all whom it may concern:

Be it known that I, SIDNEY SMITH UN- DERWOOD, of the city of Montreal,Province of Quebec, Canada, have invented certain new and usefulImprovements in Brake- Y Beam Hangers; and I do hereby declare that thefollowing is a full, clear, and exact description of the same.

The invention has for its object to prevent the brake head and with itthe beam from becoming disengaged from the hanger in the event of thebrake shoe key being removed; and it may be said briefly to consist ofthe particular construction of the hanger hereinafter described andpointed out in the claims.

For full comprehension, however, of my invention reference must be hadto the accompanying drawings, forming a part of this specification, inwhich similar reference characters indicate the same parts, and wherein-Figure 1 is a side elevation of a brake head with brake shoe in place,the brake beam being shown in transverse section, and the wholesupported by my improved hanger; Fig. 2 is a side elevation of the upperportion of the brake head and a part of the truck, the latter insectional View, with my improved hanger engaged therewith; and Fig. 3 isa face view of the parts (excepting the brake beam) illustrated in Fig.2.

The brake head 6, beam 0, shoe cl, and key 6 for detachably fasteningthe shoe to the head are of usual construction and well known in theart, there being, of course, a pair of heads and shoes on each beam, anda pair of hangers suspending the brake heads and through them the shoesand beam. The brake heads are fixed to the brake beam by rivets 7 orotherwise, and each is formed with a transverse socket 9 having alongitudinal mouth the lips 79 whereof reduce its width to less than thediameter of the socket g in which the horizontal portion is of itshanger has heretofore been held by the key. This arrangement isdefective for the reason that unauthorized persons are enabled todisengage the brake heads, shoes and beam from the hanger by simplyremoving the keys, and the same disengagement would take place at one orboth ends if either or both keys should happen to be displaced bybreakage. In order to overcome this defect I so construct the hangingmeans that the heads will be self held against displacement from thehanger while the latter is attached to the truck and readily either setin place in the socket of the head or freed therefrom when the hanger isdisconnected from the truck.

- The preferred embodiment of my invention consists of a one piecehanger of U-form the horizontal portion is whereof is substantiallyequal in diameter to the socket g, and having one, at, of its legsconnected to such horizontal portion by a neck n sufficiently reduced tobe passed endwise into the socket when the hanger is turned to theposition shown in dotted lines in Fig. 2. The effect being that afterthe parts have been so fitted and the hanger turned to its normalposition and connected to the truck, relative displacement (other thanthat due to the pivotal relation) is prevented laterally to the hangerby the partially inclosing lips 79 of the socket and longitudinallythereto by the upper secpion of brake head which is straddled by theegs.

To facilitate correct positioning of the hanger in the socket I preferto form one only of the legs with the neck 12 the other remaining offull size and acting as a stop by engaging the lips, thus limiting themovement of the hanger when being lnserted into the socket.

With this construction and arrangement the brake heads and beams arepositively locked against displacement from the hanger while the latteris connected to the truck, and Worn or broken brake shoes may bereplaced with new ones, or the shoes stripped from the heads byunauthorized persons, without danger of displacement of the heads andbeam.

What I claim is as follows:

1. The combination with a brake head having a transverse socket with alongitudinal mouth of less measurement transversely to the socket thanthe diameter of the said socket, of a hanger presenting means permittingthe hanger to enter the socket longitudinally.

2. The combination with a brake head having a transverse socket with alongitudinal mouth .of less measurement transversely to the socket thanthe diameter of the said socket, of a hanger presenting a portionpermitting the hanger to enter the socket and be automatically heldtherein against other displacement than rotary.

3. The combination with a brake head having a transverse socket with alongitudinal mouth of less measurement transversely to the socket thanthe diameter of the said socket, of a hanger having means permitting thesame to enter the socket longitudinally and means limiting the saidlongitudinal movement of the hanger.

4:. The combination with a brake head having a transverse socket with alongitudinal mouth of less measurement transversely to the socket thanthe diameter of the said socket, of a hanger of U-form the horizontalportion whereof is equal in diameter to the socket, and having one ofits legs formed with a neck permitting the insertion of such horizontalportion longitudinally into the socket.

5. The combination with a brake head having a transverse socket with alongitudinal mouth of less measurement transversely to the socket thanthe dlameter of the said socket, of a hanger of U-form the horizontalportion whereof is equal in diameter to the socket, and having one ofits legs formed with a neck permitting the insertion of such horizontalportion longitudinally into the socket, and the other leg adapted to actas a stop.

In testimony whereof, I have signed my name to this specification, inthe presence of so two subscribing Witnesses.

SIDNEY SMITH UNDERWVOOD.

Vitnesses WILLIAM P. MoFEAT, ARTHUR H. EVANS.

